How Many Solar Panels Do You Need in Texas?

How many solar panels does it take to power a house in Texas

MiAnro Solar estimates that Texas homes using 800–1,200 kWh/month would need 15–23 panels of 400 W each to meet that usage.. The exact number depends on how much energy your household consumes, the efficiency of the panels you install, and how much direct sunlight your roof receives.

The average Texas household uses ~1,146 kilowatt-hours (kWh) per month, which is higher than the U.S. national average. Hot summers and heavy air conditioning use drive that difference, making system sizing more critical in Texas than in cooler states.

A well-sized solar system should cover most or all of this demand, reducing reliance on grid power and lowering your monthly bill.

Solar panel calculator

To help homeowners estimate their solar needs, BKV Energy’s solar calculator uses several key inputs:

Average monthly usage (kWh): Enter your average monthly electricity consumption.
Production ratio: Measurement of the amount of power a solar panel can produce in average weather conditions in your location. Defaults to 1.5, the average production ratio for Texas
Panel wattage (W): Default is 400 watts.

Based on these inputs, the calculator outputs:

Recommended system size (kW DC)
Number of panels required

Average solar needs for Texas homes

Average Monthly Usage (kWh)	Recommended System Size (kW)	Estimated # of Panels	Approx. Annual Production (kWh)
1,000 (small home/condo)	6 kW	16–18 panels	~8,500–9,000
1,250 (average TX home)	7.5 kW	20–22 panels	~10,500–11,000
1,500 (larger home)	9 kW	24–27 panels	~12,500–13,000
2,000 (large home/high A/C use)	12 kW	32–36 panels	~16,500–17,500

Estimates assume panels rated 350–400 W each.

Factors that impact solar panel requirements

The number of solar panels your home needs is not fixed. Even if two households consume the same amount of electricity, their system requirements can differ significantly. Roof design, location, and lifestyle all influence the final system size.

Roof size, angle, and orientation: South-facing roofs with minimal shading are optimal for solar energy production.
Regional sunlight hours: West Texas receives more sun than Houston or Dallas, lowering the number of panels required.
Panel efficiency and wattage: Higher-wattage or premium-efficiency panels reduce the total number needed.
Household lifestyle and efficiency: Energy-conscious households with efficient appliances will need fewer kWh to maintain comfort.

These factors highlight why solar isn’t one-size-fits-all. Instead, it requires a tailored approach, blending household usage patterns with site-specific conditions to determine the right system size. This naturally leads to the next question: how much will a solar installation in Texas actually cost?

Cost of installing solar panels in Texas

In Texas, solar installation costs typically range from $2.40 to $3.20 per watt. This makes solar one of the most affordable states for rooftop systems.

A 7.5 kW system — enough to cover the average Texas home’s usage — usually costs between $18,000 and $24,000 before incentives. Larger systems for high-demand households scale proportionally in price.

Financial incentives reduce that cost significantly. The federal solar tax credit (ITC) provides a 30% credit on system expenses, and Texas homeowners benefit from a property tax exemption on the added home value. Some utilities also offer local rebates.

With these incentives in place, the payback period for most Texas households falls between 8 and 12 years. Once the system pays for itself, homeowners enjoy years of nearly free electricity production, especially in a state with abundant sunshine.

Benefits of going solar in Texas

Solar panels deliver both financial and lifestyle advantages for Texas homeowners. The most obvious benefit is lower electricity bills. By generating your own power, you reduce reliance on the grid and insulate your household budget from seasonal spikes.

Solar also provides protection against rising electricity rates. In Texas’s deregulated market, wholesale price swings can drive volatility in retail plans. A solar system hedges against those risks by locking in part of your energy supply.

There are environmental benefits as well. Rooftop solar reduces a household’s carbon emissions, lowering reliance on fossil fuels while contributing to cleaner air across the state.

Finally, solar adds a layer of energy independence. Even when tied to the grid, homeowners gain more control over their long-term energy costs and can explore options like storage batteries for backup power.

Together, these benefits make solar an attractive option for Texans seeking both savings and stability. That brings us to the final question: is solar worth it for every household?

Is solar worth it in Texas?

For many Texans, solar provides a solid long-term investment. Homeowners with high electricity usage and plans to stay in their home for 10+ years often see the strongest returns.

Solar may be less attractive if your usage is low, your roof is heavily shaded, or you anticipate moving soon. In those cases, energy-efficiency upgrades may deliver better payback.

Still, with strong sunshine across the state, falling installation costs, and generous tax incentives, solar continues to be an increasingly worthwhile option for Texas households looking to control their energy future.

Power your Texas home with confidence

As you explore the benefits of solar, one truth remains constant: having a reliable electricity provider is just as important as choosing the right system size.

At BKV Energy, we deliver straightforward, fixed-rate electricity plans that complement your solar investment. Whether you fully offset your usage with panels or still rely partly on the grid, our transparent pricing with no base charges or hidden fees ensures you maximize the value of every kilowatt-hour.

Join thousands of Texans who are taking control of their energy future with BKV Energy.

Written by Graham Lumley

Graham Lumley, Digital Marketing Manager at BKV Energy, leads digital and traditional marketing strategies, focusing on educating Texans about the state's deregulated energy market. With over 8 years of marketing experience, he creates content to help consumers understand and save on their energy bills, bringing a fresh and dynamic approach to the industry.